| The Energy Balance of Plasma in a Coaxial Plasma Opening Switch |
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| 作者姓名： | 徐翔 王友年 |
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| 作者单位： | State Key Lab of Materials Modification by Electron, Ion and Laser Beams, Department ofPhysics, Dalian University of Technology, Dalian 116023, China |
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| 基金项目： | supported by the National Science Foundation of China （No, 10376003） |
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| 摘 要： | The two-dimensional energy balance in a coaxial plasma opening switch （POS） is studied based on the single-fluid magnetohydrodynarnic （MHD） equations coupled with the generalized Ohm＇s law. The energy transfers between the plasma and the magnetic field are considered during the penetration of the magnetic field as the Ohmic heating is included in the energy-balance equation. The focus is on the energy partition between the magnetic-field energy and the dissipated magnetic-field energy in a high-density POS with different rise-in-time electric currents at the generator boundary. The simulation code is tested in two cases： the constant-in-time current case and the linear rise-in-time current case. For the sinusoidally rise-in-time current similar to that of the experiments, it is shown that at the end of the conduction phase the dissipated magnetic-field energy is 36.5% of the input electromagnetic energy, which is consistent with the experimental results.
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| 关 键 词： | 柱状等离子体断路开关 能量平衡 MHD方程 电磁能 模拟 |
| 收稿时间： | 2005-11-17 |
| 修稿时间： | 2005-11-17 |
The Energy Balance of Plasma in a Coaxial Plasma Opening Switch |
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| XU Xiang , WANG Younian.The Energy Balance of Plasma in a Coaxial Plasma Opening Switch[J].Plasma Science & Technology,2006,8(6):656-660. |
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| Authors: | XU Xiang WANG Younian |
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| Affiliation: | State Key Lab of Materials Modification by Electron, Ion and Laser Beams, Department of Physics, Dalian University of Technology, Dalian 116023, China |
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